"This Control Unit vehicle was used until 1969.
It was an 1800 sq ft studio. I believe that it was controlled by an
outside broadcast Control Room, SUU483, which incidentally also
covered the Opening of the Tay Bridge in August 1966 by the Queen
Mother.

The Control Room had three Camera
channels and was owned by Grampian until Colour arrived in September
1971.

The van was parked, of course, outside the
Grampian Studio complex in Calton Road when it was in Edinburgh. The building has
changed a great deal, but the van still exists. It is now in
the Science Museum reserve collection, near Swindon!"